Lactobacillus acidophilus or Bifidobacterium animalis subsp. lactis Bb-12 and green banana pulp were used in order to obtain potentially probiotic and prebiotic yoghurts, which were compared over a 45-day storage period. Goat milk yoghurts demonstrated probiotic effects up to 45 days of storage. Cow milk yoghurts produced with B. animalis subsp. lactis Bb-12 showed a probiotic effect reduction during the storage period (1.74 log CFU/g). The type of milk affected the yoghurts' chemical and physicochemical properties. Sensory acceptance was also affected, where cow milk yoghurts were better accepted than goat milk ones.
RESUMODenomina-se ácido linoleico conjugado (CLA) o grupo de isômeros posicionais e geométricos do ácido linoleico, que por serem naturalmente sintetizados no rúmen de animais, têm como principal fonte os alimentos derivados do leite e as carnes provenientes dos ruminantes. Há mais de duas décadas, inúmeros estudos tanto em animais quanto em humanos vêm relacionando o CLA a efeitos benéficos diversos tais como redução da carcinogênese, da aterosclerose, da massa lipídica corporal, aumento da massa muscular, entre outros. O presente trabalho teve como objetivo apresentar um panorama dos estudos relacionados ao CLA, no que diz respeito à síntese em animais e por bactérias láticas, bem como os efeitos benéficos cientificamente comprovados e formas de quantificação, sempre enfatizando leite e derivados lácteos.Palavras-chave: ácido graxo; isômeros; leite; CLA.
ABSTRACTConjugated linoleic acid (CLA) is the group of positional and geometric isomers of linoleic acid, which are naturally synthesized in the rumen of animals. The main dietary sources of CLA are milk, dairy products end meat from ruminant animals. For over two decades, numerous studies both in animals and in humans, have been linking CLA to several beneficial effects such as reduction of carcinogenesis, atherosclerosis,
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